server/handlerwrappers/default.rb in cpee-1.4.23 vs server/handlerwrappers/default.rb in cpee-1.4.24

@@ -93,9 +93,11 @@
         @controller.notify("task/instantiation", :instance => @controller.instance, :label => @label, :instance_name => @controller.info, :instance_uuid => @controller.uuid, :activity => @handler_position, :endpoint => @handler_endpoint, :received => CPEE::ValueHelper.parse(headers['CPEE_INSTANTIATION']), :timestamp => Time.now.strftime("%Y-%m-%dT%H:%M:%S.%L%:z"), :attributes => @controller.attributes_translated)
       end
       if headers['CPEE_CALLBACK'] && headers['CPEE_CALLBACK'] == 'true' && result.any?
         headers['CPEE_UPDATE'] = true
         callback result, headers
+      elsif headers['CPEE_CALLBACK'] && headers['CPEE_CALLBACK'] == 'true' && result.empty?
+        # do nothing, later on things will happend
       else
         callback result
       end
     else
       @controller.callbacks[passthrough] = CPEE::Callback.new("callback activity: #{@handler_position}",self,:callback,nil,nil,:http)